ハムスターとくらそう (Hamster to Kurasou) is a Nintendo DS game developed by Marvelous Interactive and published by Nintendo. The game is set in a world where hamsters, cats, and humans live together. The main character is a hamster named Mochi, who dreams of becoming a great hamster adventurer. The player must help Mochi explore various locations, complete various tasks, and make friends with the other characters in the game. The game features a variety of mini-games, such as fishing, cooking, and sports. Players can also customize their hamster's home, dress them up, and even create their own hamster family. Hamster to Kurasou is an adorable and fun game that is sure to bring a smile to any player's face.